The New York City American, in a September 30, 1926 obituary notice, wrote of William Jewett Tucker that he "was known in New England as 'the great president,' who brought Dartmouth from the position of a small New Hampshire college to that of a great national educational institution." One of the college's most beloved leaders, William Jewett Tucker was said to have "refounded Dartmouth," bringing its facilities, its curriculum and every aspect of its organization into the modern era. When he assumed the presidency in 1893, the college was in debt, there were only slightly over 300 students and there was no central physical facilities plant. When he stepped down in 1909 more than 20 new buildings had been erected, including a central steam plant; the student body had grown to over 1,100 students from across the country and around the world; the faculty had increased from 26 to 81; and the curriculum had been broadened.

Tireless in his efforts to build the physical college, President Tucker was also equally devoted to articulating a moral and spiritual dimension for Dartmouth and for higher education nationwide. In numerous books and essays he called for a liberalization of American theology and commitment to public service.

William Jewett Tucker retired from the Dartmouth presidency in 1909 and became president emeritus. Although retired, he remained an active figure on the public stage and lived in Hanover until his death in 1926.